Ontology highlight
ABSTRACT:
PROVIDER: PRJNA933790 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR23410569_1.fastq.gz | Fastqsanger.gz | |||
| SRR23410569_2.fastq.gz | Fastqsanger.gz | |||
| SRR23410570_1.fastq.gz | Fastqsanger.gz | |||
| SRR23410570_2.fastq.gz | Fastqsanger.gz | |||
| SRR23410571_1.fastq.gz | Fastqsanger.gz |
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Project description:Since the first report of AdipoRon as an orally active adiponectin receptor (AdipoR1/2) agonist, several studies have investigated its protective, metabolic and anti-cancer effects in the liver, kidney, heart, central nervous system and ovaries. Despite that, the effects of AdipoRon on pancreatic -cell function are yet to be addressed. Furthermore, the various AdipoRon actions reported to date have only been assessed at a rather high oral dosage without attempts to enhance its affinity and/or bioavailability. To examine how structural modifications can affect AdipoRon-induced multifaceted actions, we describe a series of AdipoRon analogs that contain amphiphilic ethylene glycol chains. Among these, we propose AdipoRonPEG5 as a more potent derivative of AdipoRon in exerting pleiotropic actions in mice under insulinopenic and high fat diet (HFD) conditions. While both AdipoRon and AdipoRonPEG5 substantially attenuate palmitate-induced lipotoxicity in INS-1 cells in a dose-dependent manner, only AdipoRonPEG5 treatment is accompanied by a marked expression of genes involved in maintaining the functional state of β-cells along with a significant reduction in ceramides. Similarly, AdipoRonPEG5 can induce a substantial reduction of pancreatic, hepatic and serum ceramide species, with a concomitant increase in the corresponding sphingoid bases, and improves insulin sensitivity of mice under HFD feeding conditions. Furthermore, hyperglycemia in STZ-induced insulinopenic adiponectin null mice is also attenuated upon AdipoRonPEG5 treatment. Our results suggest that AdipoRonPEG5 is more effective in reducing lipotoxicity in the pancreas and liver of HFD-fed mice than AdipoRon at 5 mg/Kg dosage and is consistent with adiponectin cytoprotective effect of β-cells. Additionally, these results indicate that the beneficial effects AdipoRonPEG5 can be partially attributed to improved pharmacokinetics compared to AdipoRon, thus providing the opportunity for further derivatization to achieve improved affinity and tissue-specific targeting.
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Project description:Bone marrow derived macrophages (BMDM) generated from c57bl/6j mice bone marrow cells were stimulated for 18 h with 12 microgram/ml adiponectin, RNA from non-stimulated or 18 h adiponectin-stimulated BMDM subjected to a agilent microarray analysis Three different non-stimulated and 3 different 18 h adiponectin (12 microgram/ml) RNA samples were subjected to a micrrorray analysis
2014-07-03 | E-GEOD-49332 | biostudies-arrayexpress
Project description:Bone marrow derived macrophages (BMDM) generated from c57bl/6j mice bone marrow cells were stimulated for 18 h with 12 microgram/ml adiponectin, RNA from non-stimulated or 18 h adiponectin-stimulated BMDM subjected to a agilent microarray analysis
2014-07-03 | GSE49332 | GEO
Project description:Androgen receptor (AR) plays key roles both in development of normal prostate gland and at all stages of prostate cancer. Due to the diversity of cell response to androgen stimulation, it’s necessary to investigate AR regulatory network at single cell level to fully understand how AR regulates transcription in prostate cancer cells. Here, we performed normal growing and time-series 5α-dihydrotestosterone (DHT) stimulated single cell RNA-seq profiling and transcriptome analysis on prostate cancer cell lines. We sequenced 186 single cell transcriptomes in total and found gene expression heterogeneity among each cell. Finally, novel biological processes have been discovered combined with clinical data. This study provides a comprehensive profile to dissect hormone regulation in prostate cancer at single cell resolution.
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Project description:Changes in brain mitochondrial metabolism are coincident with functional decline; however, direct links between the two have not been established. Here, we show that mitochondrial targeting via the adiponectin receptor activator AdipoRon (AR) clears neurofibrillary tangles (NFTs) and rescues neuronal tauopathy-associated defects. AR reduced levels of phospho-tau and lowered NFT burden by a mechanism involving the energy-sensing kinase AMPK and the growth-sensing kinase GSK3b. The transcriptional response to AR included broad metabolic and functional pathways. Induction of lysosomal pathways involved activation of LC3 and p62, and restoration of neuronal outgrowth required the stress-responsive kinase JNK. Negative consequences of NFTs on mitochondrial activity, ATP production, and lipid stores were corrected. Defects in electrophysiological measures (e.g., resting potential, resistance, spiking profiles) were also corrected. These findings reveal a network linking mitochondrial function, cellular maintenance processes, and electrical aspects of neuronal function that can be targeted via adiponectin receptor activation.
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Project description:Targeted disruption of the embryonic stem cell (ESC) self-renewal and pluripotency factor NANOG has been shown to diminish cancer cell clonogenic growth in vitro and tumor development in vivo. NANOG has also been shown to augment CSC properties and propel the emergence of castration-resistance prostate cancer (CRPC) phenotypes. Here, we investigate the molecular mechanisms underlying NANOG-mediated oncogenesis and prostate cancer progression to androgen independence. ChIP-Seq analysis of LNCaP prostate cancer cells overexpressing doxycycline-inducible NANOG (either NANOG1 or NANOGP8 vs pLVX control) reveal that NANOG coordinately occupies regions of chromatin regulated by AR signaling steroid-receptor complex proteins AR, FOXA1 and NKX3.1. Taken together with the NANOG-induced changes in the prostate cancer transcriptome (RNA-Seq), NANOG appears to reprogram prostate cancer cells to castration resistance by converging on steroid-hormone receptor signaling.
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Project description:The androgen receptor (AR) is the major therapeutic target in prostate cancer, although the important targets of the AR have remained obscure. Here we report a detailed genomic profile of AR signalling and find that the AR directly regulates glycolysis, anabolic metabolism and cell cycle regulators in prostate cancer. This coordinated transcriptional program promotes cancer cell proliferation and enhances the macromolecular synthesis needed to produce daughter cells. Clinical gene expression profiles and mechanistic studies highlight the importance of CAMKK2, an AR target which regulates both cell proliferation and metabolism. Thus our genomics study identifies a direct link between AR signalling and aerobic glycolysis (the Warburg effect), providing a new perspective on the oncogenic function of the AR in prostate cancer. 8 Samples: Chromatin IP using AR and PolII in stimulated and unstimulated LNCaP and VCaP cells.
2011-03-23 | E-GEOD-28126 | biostudies-arrayexpress
Project description:Prostate glands predominantly exhibit androgen dependence, but increasing evidence suggests that estrogen receptor signaling is involved in its development and pathogenesis. By integrating ChIP sequencing for estrogen receptor alpha (ERα) with transcriptome sequencing data from prostate cancer samples, we found ERα to significantly influence the noncoding transcriptome in prostate cancer. We identified one such long noncoding RNA, NEAT1, to play an important role in prostate cancer progression through direct regulation of transcription of its target genes. NEAT1, in an ERα dependent manner, promotes prostate tumorigenesis by interacting with and modulating chromatin state at promoters of prostate cancer specific signature genes. NEAT1 expression is positively correlated with PSMA in prostate adenocarcinoma and with B3GAT1 in neuroendocrine prostate cancer. This study identifies NEAT1 as a novel biomarker or therapeutic target in prostate cancer and also suggests that co-targeting ERα and androgen receptor (AR) may be effective for a subset of patients with advanced prostate cancer and with NEAT1 overexpression.
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Project description:Prostate cancer is the most common cancer in men and androgen receptor (AR) downstream signalings promote prostate cancer progression. Although androgen deprivation therapy is effective for treating prostate cancer, most tumors relapsed as castration-resistant prostate cancer (CRPC). We performed ChIP-seq analysis to investigate the role of important transcription factors and histone modifications using AR positive prostate cancer cells, LNCaP, CRPC model cells, 22Rv1 and DU145 cells.
2021-05-01 | GSE146886 | GEO
Project description:Obesity is associated with impairments of wound healing and tissue regeneration. Angiogenesis, the formation of new blood capillaries, plays a key role in organ regeneration and repair. Inhibition of lung angiogenesis impairs regenerative lung growth after unilateral pneumonectomy (PNX). However, the effects of obesity on post-PNX lung vascular and alveolar morphogenesis remain unclear. In this report, we have demonstrated that regenerative lung growth and angiogenic factor VEGFA expression induced by PNX are inhibited in Lepob/ob obese mice compared to Lepob/- mice. The levels of adiponectin, one of the adipokines that exhibits pro-angiogenic and vascular protective properties, increase in endothelial cells (ECs) isolated from remaining mouse lungs after unilateral PNX, while these effects are attenuated in Lepob/ob obese mice. Post-PNX lung growth, vascular and alveolar morphogenesis, and VEGFA levels in the lungs are inhibited in adiponectin knockout mice. Adiponectin agonist, AdipoRon stimulates post-PNX lung growth and vascular and alveolar morphogenesis in Lepob/ob obese mice. These findings suggest that obesity impairs lung vascular and alveolar regeneration and adiponectin may be one of the key molecules to improve lung regeneration in obese people.
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